Finding the Fourth Proportional to 3,789.72, 5,228.64 and 2,372.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,789.72 : 5,228.64 = 2,372.76 : x
2. Step 2: Convert to fraction form
   3,789.72/5,228.64 = 2,372.76/x
3. Step 3: Cross multiply
   3,789.72x = 5,228.64 × 2,372.76
4. Step 4: Simplify right side
   3,789.72x = 12,406,307.85
5. Step 5: Solve for x
   x = 12,406,307.85/3,789.72
6. Step 6: Final answer
   x = 3,273.67